The Kronos Quartet's latest cross-cultural exploration finds the band collaborating with master musicians from Afghanistan and Azerbaijan. Jay Blakesberg. hide caption

itoggle caption Jay Blakesberg.

Canadian violinist James Ehnes won a Grammy in 2008 for his recording of Barber's Violin Concerto. courtesy of the artist hide caption

itoggle caption courtesy of the artist

Hercules had perfect abs. For that reason and a few others, this statue of him stands in Florence, Italy. iStock hide caption

itoggle caption iStock

American pianist Earl Wild performs at his 90th-birthday recital at Carnegie Hall. courtesy of the artist hide caption

itoggle caption courtesy of the artist

Gabriel Prokofiev's Concerto for Turntables & Orchestra offers an urban twist on classical traditions. Non-classical Records hide caption

itoggle caption Non-classical Records

The vocal group Trio Mediaeval sings old and new Christmas carols from its native Norway in NPR's Studio 4A. Asa M. Mikkelsen hide caption

itoggle caption Asa M. Mikkelsen